Moving an object with the user gaze

gussabina

Hello:

I have a sphere object and I would like to move it to re-positioning where the user is gazing. I know there is an example in the academy, but this one is enabling Spatial Mapping which enables the physics in the space (so the sphere is aware of the surrounded space and could fall to the floor, for example). I'm not looking to this.
I just need a simple way of adjust a little bit the coordinates (x and y) with the user gaze. Can I use the camera position to update the object or do I have to use the gaze manager code?

Thanks for your support.
Gus

kem

Hi, I have used the code below to do this. The object having this script component attached will move with your gaze and when you ari tap it will be fixed at the current location.

public class HologramPlacement : Singleton
{
///

/// Tracks if we have been sent a transform for the model. /// The model is rendered relative to the actual anchor. ///

public bool GotTransform { get; private set; }


/// <summary>
/// Tracks if we have been sent a transform for the model.
/// The model is rendered relative to the actual anchor.
/// </summary>
public bool GotTransform { get; private set; }

void Start()
{
    // Start by making the model as the cursor.
    // So the user can put the hologram where they want.
    GestureManager.Instance.OverrideFocusedObject = this.gameObject;
}

void Update()
{
    if (!GotTransform)
    {
        transform.position = Vector3.Lerp(transform.position, proposeTransformPosition(), 0.2f);
    }
}

private Vector3 proposeTransformPosition()
{
    // Put the model 2.5m in front of the user.
    return Camera.main.transform.position + Camera.main.transform.forward * 2.5f;
}

public void OnSelect()
{
    // Note that we have a transform.
    GotTransform = true;
    // The user has now placed the hologram.
    // Route input to gazed at holograms.
    GestureManager.Instance.OverrideFocusedObject = null;
}

}

kem

Hi, I have used the code below to do this. The object having this script component attached will move with your gaze and when you ari tap it will be fixed at the current location.

public class HologramPlacement : Singleton
{
///

/// Tracks if we have been sent a transform for the model. /// The model is rendered relative to the actual anchor. ///

public bool GotTransform { get; private set; }


/// <summary>
/// Tracks if we have been sent a transform for the model.
/// The model is rendered relative to the actual anchor.
/// </summary>
public bool GotTransform { get; private set; }

void Start()
{
    // Start by making the model as the cursor.
    // So the user can put the hologram where they want.
    GestureManager.Instance.OverrideFocusedObject = this.gameObject;
}

void Update()
{
    if (!GotTransform)
    {
        transform.position = Vector3.Lerp(transform.position, proposeTransformPosition(), 0.2f);
    }
}

private Vector3 proposeTransformPosition()
{
    // Put the model 2.5m in front of the user.
    return Camera.main.transform.position + Camera.main.transform.forward * 2.5f;
}

public void OnSelect()
{
    // Note that we have a transform.
    GotTransform = true;
    // The user has now placed the hologram.
    // Route input to gazed at holograms.
    GestureManager.Instance.OverrideFocusedObject = null;
}

}

kem

Be aware thar the my code got a bit distorted by formatting. I was not able to fix this.

jbienzms

Have you looked at the TapToPlace script that is included in the toolkit? It may already do what you want or would at least give you a place to start from.